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y=-3(x²+4+4x)-1
y=-3x²-12-12x-1
y=-3x²-12x-13
b) y= 1/5 (x-3) * - 4/5
y=1/5(x²+9-6x)-4/5
y=1/5x²+9/5-6/5x-4/5
y=1/5x²-6/5x+1